This bulletin applies to 2018 GMC Canyon trucks equipped with a 2.5L engine and Terrain vehicles equipped with a 2.0L or 1.5L engine. On some vehicles, an electrical connection in the circuit board may fail in the engine control module.
Canyon Pinion Angle
Owners of 2015-2018 GMC Canyon vehicles equipped with a 3.6L engine and 8L45 automatic transmission may comment about a vibration and/or noise heard during hard acceleration at speeds of 48-52 mph. The condition may be caused when the driveline angle gets extreme during axle wind-up, resulting in 2nd order vibration.